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Effect of La³⁺ and Ti⁴⁺ Ions on the Magnetic Properties of Barium Hexaferrite Powders Synthesized Using Sol-Gel Method

Journal of Magnetics, Volume 21, Number 4, 31 Dec 2016, Pages 496-502

Emre Burak Ertuş *

(KTO Karatay University, Materials Science and Nanotechnology Engineering), Serdar Yildirim (Dokuz Eylul University, Electronic Materials Production and Application Centre), Erdal Çelik (Dokuz Eylul University, Electronic Materials Production and Application Centre)

Abstract

Doped and undoped barium hexaferrite powders (BaFe12O19, Ba0.7Ti0.3Fe12O19 and Ba0.7La0.3Fe12O19) were produced by the sol-gel method. The effects of substituting elements were studied in terms of the magnetic properties of barium hexaferrite powders. The magnetic properties were remarkably changed by the substitution of La³⁺ and Ti⁴⁺ ions for the Ba²⁺ ion and were accompanied by oxygen deficiency in the BaFe₁₂O₁₉. Coercivities (HC) from 4200 to 5100 Oe, remanences (MR) from 22 to 49 emu/g and saturation magnetizations (MS) from 41 to 73 emu/g were obtained for different samples. The obtained results were discussed in detail.

Keywords: barium hexaferrite; sol-gel; magnetic properties

DOI: https://doi.org/10.4283/JMAG.2016.21.4.496

Full Text: PDF

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